Now, to the landmark rulings by the security on marriage equality. So many of those celebrations we showed you, from coast-to-coast. Some of the biggest in san francisco. And abc's cecilia vega is there for us right now. Good morning, cecilia. Reporter: Good morning, robin. What a party it was in san francisco. They're still cleaning up out here. When same-sex marriage becomes legal in california, likely next month, that will mean about 30% of americans will live in states where gay marriage is allowed. &#9834; in san o, the party went on all night long. There was dancing in the streets to mark a momentous victory. California's long-fought battle for gay marriage, now over. In new york, there were cheers at the historic stonewall inn, honoring the woman at the center of the defense of marriage act case. The federal government can no longer discriminate against the marriages of gay and lesbians. Reporter: A sweeping win for gay rights from the nation's highest court. And now, orders from the highest offices. President obama directing his cabinet to ensure federal benefits are extended to married gay couples. California's governor, ordering all counties in the golden state to allow same-sex weddings. And the ninth circuit court saying it will take at least 25 days before those marriages can actually begin. I'm a marriage commissioner. Reporter: What's the conclusion in a same-sex marriage? I now pronounce you -- spouses for life. Reporter: Spouses for life. But not everyone is happy. I don't think the ruling was appropriate. I think it was wrong. Reporter: The ruling is not just symbolic. The changes in store for same-sex couples will be practical, too. For not having to pay estate tax on inharnss, to filing joint tax returns, to collecting more in social security benefits. The marriage license I got in 2008 in california, now kind of holds the same value as the marriage license of every other person on my block. Reporter: She and her family are celebrating here in california today. A lot of other couples also. But in states, the 36 states where gay marriage is still banned, proponents there, robin and george, say this fight goes on.

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